81571560

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{19}}^2\times {\mathrm{269}}^1$

素因数の和:328

約数の個数: 192

約数和(自身を含む): 296265600

約数和(自身を除く): 214694040

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 19, 20, 21, 24, 28, 30, 35, 38, 40, 42, 56, 57, 60, 70, 76, 84, 95, 105, 114, 120, 133, 140, 152, 168, 190, 210, 228, 266, 269, 280, 285, 361, 380, 399, 420, 456, 532, 538, 570, 665, 722, 760, 798, 807, 840, 1064, 1076, 1083, 1140, 1330, 1345, 1444, 1596, 1614, 1805, 1883, 1995, 2152, 2166, 2280, 2527, 2660, 2690, 2888, 3192, 3228, 3610, 3766, 3990, 4035, 4332, 5054, 5111, 5320, 5380, 5415, 5649, 6456, 7220, 7532, 7581, 7980, 8070, 8664, 9415, 10108, 10222, 10760, 10830, 11298, 12635, 14440, 15064, 15162, 15333, 15960, 16140, 18830, 20216, 20444, 21660, 22596, 25270, 25555, 28245, 30324, 30666, 32280, 35777, 37660, 37905, 40888, 43320, 45192, 50540, 51110, 56490, 60648, 61332, 71554, 75320, 75810, 76665, 97109, 101080, 102220, 107331, 112980, 122664, 143108, 151620, 153330, 178885, 194218, 204440, 214662, 225960, 286216, 291327, 303240, 306660, 357770, 388436, 429324, 485545, 536655, 582654, 613320, 679763, 715540, 776872, 858648, 971090, 1073310, 1165308, 1359526, 1431080, 1456635, 1942180, 2039289, 2146620, 2330616, 2719052, 2913270, 3398815, 3884360, 4078578, 4293240, 5438104, 5826540, 6797630, 8157156, 10196445, 11653080, 13595260, 16314312, 20392890, 27190520, 40785780, 81571560]

約数ペア:

[(1, 81571560), (2, 40785780), (3, 27190520), (4, 20392890), (5, 16314312), (6, 13595260), (7, 11653080), (8, 10196445), (10, 8157156), (12, 6797630), (14, 5826540), (15, 5438104), (19, 4293240), (20, 4078578), (21, 3884360), (24, 3398815), (28, 2913270), (30, 2719052), (35, 2330616), (38, 2146620), (40, 2039289), (42, 1942180), (56, 1456635), (57, 1431080), (60, 1359526), (70, 1165308), (76, 1073310), (84, 971090), (95, 858648), (105, 776872), (114, 715540), (120, 679763), (133, 613320), (140, 582654), (152, 536655), (168, 485545), (190, 429324), (210, 388436), (228, 357770), (266, 306660), (269, 303240), (280, 291327), (285, 286216), (361, 225960), (380, 214662), (399, 204440), (420, 194218), (456, 178885), (532, 153330), (538, 151620), (570, 143108), (665, 122664), (722, 112980), (760, 107331), (798, 102220), (807, 101080), (840, 97109), (1064, 76665), (1076, 75810), (1083, 75320), (1140, 71554), (1330, 61332), (1345, 60648), (1444, 56490), (1596, 51110), (1614, 50540), (1805, 45192), (1883, 43320), (1995, 40888), (2152, 37905), (2166, 37660), (2280, 35777), (2527, 32280), (2660, 30666), (2690, 30324), (2888, 28245), (3192, 25555), (3228, 25270), (3610, 22596), (3766, 21660), (3990, 20444), (4035, 20216), (4332, 18830), (5054, 16140), (5111, 15960), (5320, 15333), (5380, 15162), (5415, 15064), (5649, 14440), (6456, 12635), (7220, 11298), (7532, 10830), (7581, 10760), (7980, 10222), (8070, 10108), (8664, 9415)]